(7) Basics of Tolerance

What is tolerance?

A range of acceptable measurements

Which is true about measurements in manufacturing?

Some products do not require a high degree of accuracy.

What is the difference between a clearance and interference fit?

A clearance fit allows motion of the shaft in the hole.

When do produced tolerances become unacceptable? Tolerances are unacceptable when parts:

Cannot perform their intended function.

Which order arranges the following manufacturing processes from the least precise to the most precise tolerance limits?

Casting, turning, grinding

What type of surface texture consists of unintentional, random, or repeating irregularities, such as scratches and cracks?

Flaws

What are unilateral tolerances? Unilateral tolerances specify the acceptable measurements:

In one direction from a given dimension.

Which type of tolerance specifies a range of acceptable measurements rather than a target dimension?

Limit dimensions

What is the difference between dimensions and tolerances?

The dimensions are the ideal measurements for a part, and the tolerances describe the actual parts to be made.

Which statement about cost and tolerance is true?

Tight tolerances increase the cost of parts.